发明名称 |
GENERATING FINGERPRINTS OF INFORMATION SIGNALS |
摘要 |
The present invention provides a method for generating fingerprints (1) of information signals (2), and in particular of video signals, those fingerprints being robust with respect to the frame rate of the information signal. Embodiments achieve this robustness by computing a sequence (3) of sub-fingerprints (30) from the sequence of frames of the source information signal, the sequence of sub- fingerprints having a predetermined rate independent of the frame rate of the source, and each sub- fingerprint being derived from and dependent upon a data content of at least one frame of the information signal. The sub- fingerprints at the predetermined rate are then concatenated to form the fingerprint (1) of the source signal. |
申请公布号 |
WO2007148290(A3) |
申请公布日期 |
2008.03.13 |
申请号 |
WO2007IB52368 |
申请日期 |
2007.06.20 |
申请人 |
KONINKLIJKE PHILIPS ELECTRONICS N.V.;HAITSMA, JAAP, A.;BHARGAVA, VIKAS |
发明人 |
HAITSMA, JAAP, A.;BHARGAVA, VIKAS |
分类号 |
G06T1/00 |
主分类号 |
G06T1/00 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|